The goal of this clinical research study is to learn if the combination of 2 drugs dabrafenib and trametinib can help to control melanoma that has or has not spread to the brain. The safety of this drug combination will also be studied. Dabrafenib is designed to block the mutated BRAF protein. This mutation is only found in moles of the skin and in melanoma cells. By blocking the protein, the drug may slow the growth of or kill cancer cells that have the protein. Trametinib is designed to block certain proteins that cause cancer cells to grow and multiply. This may cause the cancer cells to die.
Name: GSK2118436
Description: Starting dose 150 mg by mouth twice a day.Type: DrugGSK2118436 + GSK1120212
Name: GSK1120212
Description: 2 mg by mouth daily.Type: DrugGSK2118436 + GSK1120212
Description: Overall response rate defined as percentage of subjects with a confirmed complete response (CR) or a partial response (PR) at any time as per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria. Clinical responses will be evaluated using RECIST 1.1 criteria after every 2 cycles (8 weeks). Complete Response (CR): Disappearance all lesions; pathological lymph nodes reduction in short axis to <10 mm. Partial Response (PR): >30% decrease in sum diameters of lesions, reference baseline sum diameters. Progressive Disease (PD): >20% increase in sum diameters of lesions, reference smallest sum on study (includes baseline sum if smallest on study); relative increase of 20%, sum must also demonstrate absolute increase of >5 mm; appearance of 1 or > new lesions considered progression). Stable Disease (SD): Neither sufficient shrinkage for PR nor sufficient increase for PD, reference smallest sum diameters while on study.
Measure: Overall Response Rate (ORR) Time: Evaluation every 8 weeks (2 cycles) up to 12 monthsDescription: Clinical responses evaluated using RECIST 1.1 criteria after every 2 cycles (8 weeks). Complete Response (CR): Disappearance all lesions; pathological lymph nodes reduction in short axis to <10 mm. Partial Response (PR): >30% decrease in sum diameters of lesions, reference baseline sum diameters. Progressive Disease (PD): >20% increase in sum diameters of lesions, reference smallest sum on study (includes baseline sum if smallest on study); relative increase of 20%, sum must also demonstrate absolute increase of >5 mm; appearance of 1 or > new lesions considered progression). Stable Disease (SD): Neither sufficient shrinkage for PR nor sufficient increase for PD, reference smallest sum diameters while on study.
Measure: Number of Participants by Response Time: Evaluation every 8 weeks (2 cycles) up to 12 monthsDescription: Duration of response defined for subjects with a confirmed complete response (CR) or partial response (PR), as time from the first documented evidence of a CR or PR until the first documented disease progression or death due to any cause. Progression free survival (PFS) estimated and summarized using the method of Kaplan and Meier.
Measure: Progression-Free Survival (PFS) Time: Evaluation every 8 weeks (2 cycles) up to 12 monthsSingle Group Assignment
There are 3 SNPs
3. BRAF mutation-positive melanoma (i.e., V600E, V600K or V600D) 4. For Cohort A, patients must have easily accessible tumor for a mandatory biopsy. --- V600E --- --- V600K --- --- V600D ---
3. BRAF mutation-positive melanoma (i.e., V600E, V600K or V600D) 4. For Cohort A, patients must have easily accessible tumor for a mandatory biopsy. --- V600E ---
3. BRAF mutation-positive melanoma (i.e., V600E, V600K or V600D) 4. For Cohort A, patients must have easily accessible tumor for a mandatory biopsy. --- V600E --- --- V600K ---